HomePodCast 0.2.2

HomePodCast 0.2.2. Same source as 0.2.2 beta 5, tested on a real HomePod (2nd gen). Not code-signed yet, so SmartScreen may warn ("More info" → "Run anyway"). Coming from 0.2.1 or older, install this MSI by hand once; from then on, Settings → Updates can install new versions for you.

New since 0.2.1:

• Updates (Settings → Updates): Check for updates asks GitHub for the latest release of your channel, Stable or Beta. If there is one: Update, Release notes or Skip this version. Update downloads the MSI, checks it against the SHA-256 GitHub lists for it, quits HomePodCast, installs through one administrator prompt and starts it again. Nothing is installed without your click, and it never offers an older version.
• Automatic update checks are off by default, so HomePodCast doesn't go online unless you ask. Turned on, it notifies you when a new version is out (about 30 seconds after start, then once a day) and still never installs by itself. The portable zip only opens the release page.
• Public network warning: after a network change (a move, a cable instead of Wi-Fi), Windows may put the network that reaches the HomePod in the Public category, where HomePodCast's firewall rule doesn't apply and the HomePod can't connect back. The app now says so and opens the right Settings page; once the network is Private, it reconnects on its own.
• The network hint names the band first: when the HomePod's Wi-Fi is unstable, the hint suggests moving a HomePod on 2.4 GHz to 5 GHz before it mentions placement. Measured in a crowded building: on 2.4 GHz, a 21 ms ping median and stutters even at 500 ms latency; on 5 GHz, a 2 ms median and nothing lost. Routers with Smart Connect (one name for both bands) tend to put the HomePod (2nd gen, Wi-Fi 4 only) on 2.4 GHz.
• Dropouts include the network's likely gaps: the HomePod never reports late packets, so this tile used to read 0 through audible stutters. It now adds the network's estimate, shown with "≈"; the tooltip splits PC and network.
• Privacy policy: PRIVACY.md (no telemetry, no accounts).

Fixed:

• Blocked connections no longer offer to add a firewall rule that already exists. With the rule in place on a Private network, the message says another firewall or security program may be blocking HomePodCast.exe.
• Wired PC: the network hint no longer blames the PC's Wi-Fi when the PC is on a cable.
• Starting HomePodCast while it is already running brings its window forward again.
• README FAQ "Occasional stutters": the first step is now to check the HomePod's band.

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HomePodCast 0.2.2：与 0.2.2 测试版 5 源码完全相同，已在真实的 HomePod（第二代）上测试。程序未签名，Windows 可能弹出 SmartScreen 提示（点「更多信息」→「仍要运行」）。从 0.2.1 或更早版本升级时，需要手动安装一次这个 MSI；之后的新版本就可以在 设置 →「软件更新」里直接安装。

相对 0.2.1 的新增内容

• 软件更新（设置 →「软件更新」）：点「检查更新」会向 GitHub 查询所选渠道（正式版或测试版）的最新版本。有新版本时可以选「更新」「查看说明」或「跳过此版本」。点「更新」会下载 MSI，先用 GitHub 提供的 SHA-256 校验，然后退出 HomePodCast、弹出一次管理员授权完成安装，装好后自动重新打开。不点就不会安装，也不会提示降级到旧版本。
• 自动检查更新默认关闭，你不主动查询时 HomePodCast 不会联网。打开后，有新版本时会弹出通知提醒你（启动约 30 秒后检查一次，之后每天一次），但仍然不会自动安装。便携版点「更新」只会打开发布页。
• 公用网络提醒：换了网络（搬家、改插网线等）后，如果 Windows 把连 HomePod 的那个网络标成了「公用网络」，HomePodCast 的防火墙放行就不生效，HomePod 连不回本程序。现在程序会直接说明原因，并打开对应的 Windows 设置页；改成「专用网络」后会自动重连。
• 网络提示先说频段：HomePod 那边的 Wi-Fi 不稳时，提示会先建议「HomePod 如果连在 2.4G 上，改连 5G」，然后才提摆放位置。实测：在人多墙薄的环境里，HomePod 在 2.4G 上 ping 中位数 21 ms，即使延迟设到 500 ms 也会断音；改连 5G 后中位数 2 ms，一个都没丢。路由器开了 Smart Connect（双频合一）时，HomePod 第二代（只支持 Wi-Fi 4）容易被分到 2.4G。
• 「断音」计入网络造成的断音：HomePod 从不报告晚到的包，所以以前听到断音时这一格也显示 0。现在会加上网络很可能造成的断音（估计值），数字前带「≈」，鼠标悬停可以看到「电脑这边 / 网络」各几次。
• 隐私政策：PRIVACY.md（没有遥测，不需要账号）。

修复

• 连接被拦截时，如果防火墙规则已经存在，不再提示「添加规则」。如果规则在、网络也是专用的，但仍然被拦，会提示可能是其他防火墙或安全软件拦截了 HomePodCast.exe。
• 电脑插网线时，网络提示不会再说「电脑这边的 Wi-Fi 不稳」。
• HomePodCast 已经在运行时再次启动它，会把已打开的窗口调到前面。
• README 常见问题「偶尔卡一下怎么办」：第一步改为检查 HomePod 连的频段。